He is one of Japan’s experimental video pioneers, active since the 1960s. His work explores the relationships between media, time, and language, and attempts to redefine the film screening experience beyond its traditional mediums, establishing connections between film, visual arts, and performance. Moved to New York in 1966, where he became close with the members of the Hi-Fi Centre and the Fluxus group, and had contact with artists like Yoko Ono, Jonas Mekas, John Cage, Stan Brakhage and Stan Vanderbeek. In that same year he participated in the Harvard International Seminar, in Boston, headed by Henry Kissinger. He has been a professor at several American universities, like the University of Minnesota, Ohio State University and the New York State University. In 1992 he started working at the Arts Department of the Nagoya Zōkei Daigaku (Nagoya Arts and Design University), in Nagoya, Japan, where he lives and works.